I must be going senile, I have booked this before but have forgotten how to now! I need to book 2 Senior Off Peak Travel cards for London Zones 1 -2 . I would like to pick them up at Runcorn Station before departure to save time messing about in London ( I have done this before). We are only in London for a few hours and wish to visit London Br, Clapham Junction and possibly Kings Cross / St Panc so Zone 1-2 will do, in fact Zone 1 would be enough. Cant seem to book them at NRE website. Any help please?